ADM809LART-REEL

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Push-Pull, Totem Pole
Reset:	Active Low
Reset Timeout:	140 ms Minimum
Voltage - Threshold:	4.63V
Operating Temperature:	-40°C ~ 125°C (TA)
Mounting Type:	Surface Mount
Package / Case:	TO-236-3, SC-59, SOT-23-3
Supplier Device Package:	SOT-23-3
Base Part Number:	ADM809

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Application Field of ADM809LART-REEL

The ADM809LART-REEL is a microprocessor (MCU) power-on reset (POR) circuit which is a low-power device that employs an ultra-low voltage detector (UVLD) and an active-high reset (RESET) output. This device can be used to provide the MCU with a power-on reset signal. The device is used in a wide range of applications, including industrial, automotive and consumer electronic systems.

Working Principle of ADM809LART-REEL

The ADM809LART-REEL has an ultra-low voltage detector (UVLD) that provides a voltage threshold for the power-on reset (POR) signal. When the detected voltage is equal to or below the threshold voltage, the device\'s RESET output is active-high and, as the detected voltage increases, the output de-asserts. Additionally, the device features a reset-valid rise time that is adjustable for the MCU wake-up time.The operating range of the ADM809LART-REEL is specified over a temperature range of -40°C to +85°C. This allows the uPor reset device to operate over a wide range of temperatures without any adjustments. The hysteresis of the ultra-low voltage detector (UVLD) helps to reduce false triggering and the reset width is limited to maintain the device\'s safety margin. The open-drain output allows for easy integration with the system and supports multiple reset outputs when using the RESETB and RESETA pins together.

Conclusion

The ADM809LART-REEL is a versatile and low-power microprocessor power-on reset (POR) circuit that can be used in a wide range of applications requiring an active-high reset (RESET) output. It has an adjustable reset-valid rise time that allows the device to be used in different application scenarios. The device is specified over a temperature range of -40°C to +85°C and features a hysteresis of the ultra-low voltage detector (UVLD) to reduce false triggering. The open-drain output allows for easy integration with the system and supports multiple reset outputs when using the RESETB and RESETA pins together. This makes the ADM809LART-REEL suitable for use in a variety of applications such as consumer, automotive and industrial systems.

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